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(No Model.)

H. W. JOHNS.

FABRIC FOR GOVBRING HEATBD SURFAGES.

Patented Jan. 6, 18875.

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UNITED STATES PATENT OFFICE.V

HENRY V. JOHNS, OF NEV YORK, N. Y.

FABRIC FOR COVERING HEATED SURFACEiS.

SPECIFICATION forming part of Letters Patent No. 310,205, dated January6, 1885.

Application filed February 1, 1884.

To all whom t 71mg/ concern:

Be it known that I, HENRY W. JOHNS, of the city, county, and State ofNew York, have invented a new and useful Improvement in Fabrics forCovering Heated Surfaces or Surfaces to be Protected from Radiation orGreat Heat, of which the following is such a full, clear, and exactdescription as will enable others skilled in the art to make and use thesame, when taken in connection with the accompanying drawings, in which-Figure l is a sectional view of the fabric at right angles to the looserolls. Fig. 2 is a perspective view of the fabric. Fig. 3 is a view of asheet used in making the fabric. Fig. 4 is a perspective view of" afabric woven from the rolls and corrugated sheet. Fig. 5 is a sectionof' a modification. Fig. 6 is a section ofthe same showing a joint. Fig.S is a section of a n'iodification. Fig. 9 is a face view of` anothermodication. of another modification. Fig. 1l is a cross-section of amodification of' Fig. l0. Figs. 12 and 13 show the manner of addingstrengthening strips or threads to the sheet.

This invention relates to a new and useful fabric for covering heatedsurfaces or surfaces to be protected from radiation or great heat; andit consists of a combination of a paper sheathing or sheet with acovering of loose and eompressible rolls or ropes of fibrous materialand the various combinations hereinafter specified and claimed.

ln carrying out this my invention a piece of heavy paper or sheathing iscorrugated, as shown at A. in Fig. l, and within the corrugations oneither side are placed the rolls, ropes, er bats B B and (l. These rollsor bats may be retained in their position by glue, cement, serving crtying, or may be placed in position as the paper or sheathing is appliedto the surface to be covered.

The rolls or bats maybe used on either one or both sides ofthe paper orsheathing; but a more serviceable fabric is made when all thecorrugations on each side of' the sheet filled.

The fal'iric may be made as shown in Fig. 2, where the corrugated' sheetA is combined with the continuous rope or batting B, which continuesfrom one edge of the sheet to the other, filling `a eorrugation first onone side Fig. l0 is alike view (No model.)

vform the sides ofthe corrugations, 4and not the top or bottom thereof,whereby the core or batting will pass from one corrugation to thenextthrough one of the notches D, and be thereby held in its place inthe corrngations; or the sheet may be plain or indented instead ofcorrugated, but provid-ed with scalloped or notched edges, and the cordor batting wound or woven around it, the cord or batting fitting intothe notches or scallops at t-he edges of the sheet.

The bats or batting may be fastened by glue or in any suitable manner.

Fi g4 is a perspective view of a fabric made of several pieces of' thecorrugated paper, sheathing, or sheet A. A, combined with the cord orbatting B, so as to form a woven-like fabric, the strips of paper orsheathing acting as a warp. The piece A is over B and under B', over B'Jand under B, and A is under B and over B', under B2 and over B, and A isin the same relation as A, and so' alternating throughout and making afirm and strong fabric more pliable than when a Continous sheet of paperor sheathing is used.

The several pieces and parts may be attached to one another by gluing,cement, or in any appropriate manner, it' desired.

To the faces or either of the faces 4may be fastened a sheet of'asbestus, or other paper or cloth, or metal sheet or other suitablesheet, as shown in Fi g. 5,where the corrugated sheet is shown by A.,the rolls or ropes by B, and the sheets attached by l and F. The sheetsE and F may be extended beyond the edge of' the fabric to which they areapplied, so as to form flaps c andf, Which may be turned over the edgeofthe fabric, as at c audf, and, if desired, attached to'Fi and F,respectively, by glue or cement, thereby binding the whole into acompact fabric, or these flaps may be left free and fastened to the edgeof' another like fabric, so as to make a continuons sheet, as at Fig. 6.

Two or more of any or eitherof these `fabrics may be placed togetherface to face, so as to increase the thickness, and glued, cemented,sewed, or otherwise fastened to one another into a firm fabric.

The fabric may be made by fastening to either or both sides of a plainsheet of paper, sheathing, or other sheet the loose roll, rope, or bat,so that they completely cover the surface or surfaces thereof, as shownin Fig. 8, wherein A represents the paper or sheathing, and B the rollor ropes. The paper may be flat and even or indented or corrugated. Therolls or ropes are glued or otherwise fastened to the surface of thepaper or sheathing, or may be sewed thereto by sewing through the whole.'Vhen a plain paper is used for this purpose the rolls or ropes may beplaced so as to run in a different direction on the two opposite sidesof the paper, if desired.

The .rolls or ropes may be placed on the paper, sheathing, or sheet in aserpentine or other form, so as to forni spaces or chambers betweenthem, as shown in Fig. 9. 'Ilnrolls may be attached to the sheet atshort intervals from one another, and the. space between them dividedinto sections by cross-pieces, as shown in Fig. 10, dividing the surfaceofthe sheet into squares or oblong divisions. There may be one or morelayers of the rolls or ropes placed over the first, so as to close ordivide the air-chambers left between the rolls or ropes first attachedto the sheet of sheathing, as shown in Fig. Il, or to form a material ofgreater thickness.

The rope, roll, or batting used in making the above-described fabric maybe composed of asbestus broken info a fibrous condition and formed byrolling or twisting into the desired form, or it may be asbestus mixedwith mineral wool, hair, wool, or other fibrous substance, or anyfibrous material alone or mixed i with other fibrous material.

rI`he paper, sheathing, or sheet may be ashes fus paper or sheathing, orpaper or sheathing of other material, or sheet metal, or cloth or felt.

Then the fabric is to be exposed to great heat, it is preferred to havethe paper and roll or rope each of pure asbestus.

VhateVer material is used in making the fabric may be coated orsaturated with a fireproof composition, or a binding or stiffeningmaterial, or both, during manufacture, when manufactured, or whenapplied, to form a stiff' sheet, which will hold it in place, or when,if'

dried in a cylindrical form, it may be sprung on pipes.

The loose rolls may be saturated with a hardening substance beforemanufacture into a fabrie,if desired. I have found a silicate of sodaJgive good results; but many other materials may be used for the purpose.

For the loose and coinpressible roll or rope may be substituted a hardcord, roll, or rope,

or strip; but a loose roll or rope is preferred.

Instead of the fibrous roll or rope a roll or rope made of strips ofasbestus paper or board may be used, which should be twisted intoarope-like form.

The loose cord or rope may have within it a core or strengthening pieceof wire or strong cord to keep it from stretching or breaking.

The sheets may have fastened to them other sheets or cords or wires togive an increased strength, and the corrugated sheets may have cords,wires, or strips passing through the corrugations so as to hohl them inplace, as shown in Fig. l2, or wires, cords, strips, or other sheets maybe attached, as shown -in Fig. 13, wherein A represents the sheet and mthe cord, strip, or sheet attached.

That I claim as new, and desire to secure by Letters Patent, is-

l. As a new article of manufacture, a fabric composed of a sheet havingattached tothe surface thereof rolls or ropes of fibrous material,substantially as specified.

Q. The combination, in afabric, of' a corrugated sheet and rolls orropes contained in the corrugations, substantially as specified.

3. The combination, in a fabric, of ashcet having notched edges androlls or ropes covering the surface and fitting into the notches,substantially as specified.

4. The combination, in a fabric, of' a corrugated sheet having notchededges and .rolls or ropes fitting into the corrugations and notches,substantially as specified.

5. The combination, of a sheet, with rolls or ropes attached to one orboth surfaces, the sheet extending at the sides beyond the covering,substantially as specified.

6. rlhe fabric consisting of rolls or ropes woven withstrips of paper,sheathing, or other sheet, substantially as specified.

HENRY V'. JOHNS.

Witnesses:

Giras. II. Ii'rnion, I DANIEL Enum..

